Száz éve működnek planetáriumok a világban

27 April 2023, Bavaria, Munich: A photographer takes a picture of a projection in a planetarium in the special exhibition "100 Years of the Planetarium" during a press tour of the German Museum. In 1923, the first projection planetarium was presented on Museum Island. The Deutsches Museum is celebrating this anniversary with the special exhibition "100 Years of the Planetarium". Photo: Sven Hoppe/dpa (Photo by SVEN HOPPE / DPA / dpa Picture-Alliance via AFP)